WattCost

Data through April 2026

Running cost · Water Heaters (Electric) · ENERGY STAR certified

Rheem XE65T10H45U1

Heating a typical household's hot water, the Rheem XE65T10H45U1 is certified at 1,184 kWh a year — about $223 at the U.S. average electricity rate, or $18.58 a month. Efficiency-wise it's unremarkable in a good way: within 9% of the median certified electric water heater (rank 306 of 566). Where you live moves the bill from $146 a year in North Dakota to $552 in Hawaii.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$223/yr

$121 · cheapest certified water heaters (electric)$328 · priciest
Per month
$18.58
Per day
61¢
Certified use
1,184 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
59 gal
First-hour rating
75 gal
UEF
4.05
643 kWh1,741 kWh
Where the Rheem XE65T10H45U1 (▮) sits among all 566 certified water heaters (electric), by annual kWh

What it costs in every state

Rheem XE65T10H45U1: 1,184 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$206
Alaska27.4¢$324
Arizona15.5¢$183
Arkansas14.2¢$168
California35.3¢$417
Colorado16.5¢$196
Connecticut32.2¢$382
Delaware18.8¢$222
District of Columbia25.4¢$301
Florida15.4¢$182
Georgia15.4¢$182
Hawaiipriciest46.6¢$552
Idaho12.7¢$150
Illinois20.5¢$242
Indiana17.9¢$212
Iowa13.9¢$164
Kansas15.8¢$187
Kentucky15.0¢$178
Louisiana14.4¢$171
Maine28.4¢$336
Maryland22.1¢$261
Massachusetts29.4¢$349
Michigan21.4¢$253
Minnesota16.4¢$194
Mississippi16.8¢$198
Missouri14.0¢$166
Montana13.9¢$165
Nebraska13.3¢$157
Nevada14.3¢$169
New Hampshire27.2¢$323
New Jersey23.5¢$279
New Mexico15.2¢$179
New York29.4¢$349
North Carolina16.3¢$192
North Dakotacheapest12.3¢$146
Ohio19.5¢$231
Oklahoma13.3¢$158
Oregon15.8¢$187
Pennsylvania21.5¢$254
Rhode Island28.3¢$335
South Carolina17.1¢$202
South Dakota14.5¢$172
Tennessee14.9¢$177
Texas17.0¢$201
Utah13.3¢$157
Vermont24.6¢$291
Virginia17.4¢$206
Washington14.4¢$170
West Virginia16.1¢$190
Wisconsin19.2¢$227
Wyoming14.7¢$174

Certified models closest in efficiency

electric water heaters within reach of 1,184 kWh/yr
ModelkWh/yr$/yr (US avg)
Friedrich PROH65 T2 FD400-301,184$223
Friedrich PROH65 T2 FD400-SO1,184$223
Rheem PROPH65 T2 RH375-301,184$223
Rheem PROPH65 T2 RH375-SO1,184$223
Rheem PROPH65 T2 RH400-301,184$223
Rheem PROPH65 T2 RH400-SO1,184$223

Run your own numbers

Your rate, your numbers

Per day
61¢
Per month
$18.58
Per year
$223

1,184 kWh/yr × 18.8¢/kWh = $223/yr

Prefilled with this model's certified 1,184 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.

Questions, answered with the data

How much electricity does the Rheem XE65T10H45U1 use?
ENERGY STAR certifies the Rheem XE65T10H45U1 at 1,184 kWh per year. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.
How much does the Rheem XE65T10H45U1 cost to run per month?
About $18.58 a month at the U.S. average residential rate (18.8¢/kWh) — 61¢ a day, or $223 a year. Your state's rate moves this up or down; see the table above.
Is the Rheem XE65T10H45U1 energy efficient?
It uses 9% more electricity than the median certified electric water heater.
What does the Rheem XE65T10H45U1 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $146 a year in North Dakota (12.3¢/kWh) and $552 in Hawaii (46.6¢/kWh).

Keep digging